Naoki Hara
36Patents
9h-index
62Co-inventors
78Inventor score
Filing activity: Dec 30, 1985 → Jan 20, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6207976A | Semiconductor device with ohmic contacts on compound semiconductor and manufacture thereof | Electricity | 67 | Expired |
| US6071780A | Compound semiconductor apparatus and method for manufacturing the apparatus | Electricity | 36 | Expired |
| US4964483A | Motor scooter | Performing Operations; Transporting | 28 | Expired |
| US6507051B1 | Semiconductor integrated circuit device | Electricity | 16 | Expired |
| US5920105A | Compound semiconductor field effect transistor having an amorphous gas gate insulation layer | Electricity | 15 | Expired |
| US5900641A | Field effect semiconductor device having a reduced leakage current | Electricity | 12 | Expired |
| US4995471A | Air cleaner and carburetor layout for motorcycles | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US6926852B2 | Cell plate structure for solid electrolyte fuel cell, solid electrolyte fuel cell and related manufacturing method | Emerging Cross-Sectional Technologies | 10 | Expired |
| US6893760B2 | Solid oxide fuel cell | Emerging Cross-Sectional Technologies | 9 | Expired |
| US4815554A | Air cleaner and carburetor layout for motorcycles | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US5001454A | Thin film resistor for strain gauge | Physics | 7 | Expired |
| US6849354B2 | Solid oxide fuel cell having perovskite solid electrolytes | Emerging Cross-Sectional Technologies | 5 | Expired |
| US6896989B2 | Solid electrolyte fuel cell and related manufacturing method | Emerging Cross-Sectional Technologies | 4 | Expired |
| US8091236B2 | Manufacturing method for toothed power transmission member having oil reservoir and toothed power transmission member manufactured by this manufacturing method | Emerging Cross-Sectional Technologies | 2 | Active |
| US7122265B2 | Single cell for fuel cell and solid oxide fuel cell | Emerging Cross-Sectional Technologies | 2 | Expired |
| US5591994A | Compound semiconductor field effect transistor having a controlled diffusion profile of impurity elements | Electricity | 2 | Expired |
| US7392694B2 | Tire condition monitor device and method of manufacturing the same | Chemistry; Metallurgy | 2 | Active |
| US7045243B2 | Cell plate structure for fuel cell, manufacturing method thereof and solid electrolyte type fuel cell | Emerging Cross-Sectional Technologies | 2 | Expired |
| US7074513B2 | Unit cell for solid electrolyte type fuel cell and related manufacturing method | Emerging Cross-Sectional Technologies | 1 | Expired |
| US7108932B2 | Fuel cell system | Emerging Cross-Sectional Technologies | 1 | Expired |
| US7326484B2 | Solid oxide fuel cell | Emerging Cross-Sectional Technologies | 1 | Expired |
| US9349931B2 | Resin composition, resin sheet, cured resin sheet, resin sheet laminate, cured resin sheet laminate and method for producing same, semiconductor device and LED device | Electricity | 1 | Active |
| US9745411B2 | Resin composition, resin sheet, cured resin sheet, resin sheet structure, cured resin sheet structure, method for producing cured resin sheet structure, semiconductor device, and LED device | Electricity | 1 | Active |
| US7122268B2 | Solid oxide electrolyte fuel cell plate structure, stack and electrical power generation unit | Emerging Cross-Sectional Technologies | 1 | Expired |
| US6969565B2 | Solid oxide fuel cell stack and method of manufacturing the same | Emerging Cross-Sectional Technologies | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.